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164 lines (127 loc) · 4.81 KB
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# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import sys
sys.path.insert(0, ".") # to run from minigo/ dir
from absl import flags
from flask import Flask
import absl.app
from flask_socketio import SocketIO
import functools
import json
import logging
import subprocess
flags.DEFINE_string("model", None, "Model path.")
flags.DEFINE_integer(
"board_size", 19,
"Board size to use when running Python Minigo engine: either 9 or 19.")
flags.DEFINE_integer("port", 5001, "Port to listen on.")
flags.DEFINE_string("host", "127.0.0.1", "The hostname or IP to listen on.")
flags.DEFINE_string(
"engine", "py",
"Which Minigo engine to use: \"py\" for the Python engine, or "
"one of the C++ engines (run \"cc/main --helpon=factory\" for the "
"C++ engine list.")
flags.DEFINE_integer(
"virtual_losses", 8, "Number of virtual losses when running tree search.")
flags.DEFINE_string(
"python_for_engine", "python",
"Which python interpreter to use for the engine. "
"Defaults to `python` and only applies for the when --engine=py")
flags.DEFINE_boolean(
"inject_noise", False,
"If true, inject noise into the root position at the start of each "
"tree search.")
flags.DEFINE_integer(
"num_readouts", 400,
"Number of searches to add to the MCTS search tree before playing a move.")
flags.DEFINE_float("resign_threshold", -0.8, "Resign threshold.")
FLAGS = flags.FLAGS
# Suppress Flask's info logging.
log = logging.getLogger("werkzeug")
log.setLevel(logging.WARNING)
app = Flask(__name__, static_url_path="", static_folder="static")
app.config["SECRET_KEY"] = "woo"
socketio = SocketIO(app, logger=log, engineio_logger=log)
def _open_pipes():
if FLAGS.engine == "py":
GTP_COMMAND = [FLAGS.python_for_engine, "-u", # turn off buffering
"gtp.py",
"--load_file=%s" % FLAGS.model,
"--minigui_mode=true",
"--num_readouts=%d" % FLAGS.num_readouts,
"--conv_width=128",
"--resign_threshold=%f" % FLAGS.resign_threshold,
"--verbose=2"]
else:
GTP_COMMAND = [
"bazel-bin/cc/main",
"--model=%s" % FLAGS.model,
"--num_readouts=%d" % FLAGS.num_readouts,
"--soft_pick=false",
"--inject_noise=%s" % FLAGS.inject_noise,
"--disable_resign_pct=0",
"--ponder_limit=100000",
"--courtesy_pass=true",
"--engine=%s" % FLAGS.engine,
"--virtual_losses=%d" % FLAGS.virtual_losses,
"--resign_threshold=%f" % FLAGS.resign_threshold,
"--mode=gtp"]
return subprocess.Popen(GTP_COMMAND,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
env=dict(os.environ, BOARD_SIZE=str(FLAGS.board_size)))
token = ""
echo_streams = True
p = None
def std_bg_thread(stream):
global token
global echo_streams
for line in p.__getattribute__(stream):
line = line.decode()
if echo_streams:
sys.stdout.write(line)
if "GTP engine ready" in line:
echo_streams = False
if line[-1] == "\n":
line = line[:-1]
if line.startswith("= __NEW_TOKEN__ "):
token = line.split(" ", 3)[2]
socketio.send(json.dumps({stream: line, "token": token}),
namespace="/minigui", json=True)
print(stream, "bg_thread died")
@socketio.on("gtpcmd", namespace="/minigui")
def stdin_cmd(message):
print("C -> E:", message)
global p
try:
p.stdin.write(bytes(message["data"] + "\r\n", encoding="utf-8"))
p.stdin.flush()
except BrokenPipeError:
p = _open_pipes()
@app.route("/")
def index():
return app.send_static_file("index.html")
def main(unused_argv):
global p
p = _open_pipes()
socketio.start_background_task(
target=functools.partial(std_bg_thread, "stderr"))
socketio.start_background_task(
target=functools.partial(std_bg_thread, "stdout"))
socketio.run(app, port=FLAGS.port, host=FLAGS.host)
if __name__ == "__main__":
flags.mark_flags_as_required(["model"])
absl.app.run(main)